Title :
An improved adaptive integral method (AIM) with far-field expansion for analysis of microstrip structures
Author :
Zhuang, W. ; Mo, L. ; Chen, R.S. ; Wang, D.X.
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., China
Abstract :
A new approximation criterion is applied to the far-field expansion in the AIM for the analysis of microstrip circuits. Compared to the original method, the proposed algorithm can reduce the distance requirement of the near-field interaction in AIM with a more sparse near-field impedance matrix. The far-field expansion AIM can provide good accuracy for larger lattice size with the reduced requirement of storage and computation time.
Keywords :
approximation theory; computational electromagnetics; impedance matrix; microstrip circuits; sparse matrices; AIM; adaptive integral method; approximation criterion; far-field expansion; microstrip circuits; near-field interaction; sparse matrix; sparse near-field impedance matrix; Fourier transforms; Geometry; Impedance; Integral equations; Least squares approximation; Matrix decomposition; Microstrip; Moment methods; Sparse matrices; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552025
